Komatsu PC450-8 Operation & Maintenance Manual page 320

MAINTENANCE PROCEDURE
EVERY 500 HOURS MAINTENANCE
Maintenance for every 50 and 250 hours service should be carried out at the same time.
LUBRICATING
NOTICE
q
If any abnormal noise is generated from any greasing point, carry out greasing regardless of the
greasing interval.
q
Carry out greasing every 10 hours for the first 50 hours on a new machine.
q
After the machine was subjected to jobs in the water, be sure to grease the wet pins.
q
When carrying out heavy-duty operations, such as hydraulic breaker operations, carry out the greas-
ing every 100 hours.
1. Set the machine to the greasing posture shown on the
right, lower the work equipment to the ground, then stop
the engine.
2. Using a grease pump, pump in grease through the grease
fittings shown by arrows.
3. After greasing, wipe off any old grease that was pushed
out.
(1) Boom cylinder rod pin (2 places)
(2) Arm cylinder foot pin (1 places)
(3) Boom-Arm coupling pin (1 place)
(4) Arm cylinder rod end (1 place)
(5) Bucket cylinder foot pin (1 place)
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MAINTENANCE
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